CN217520813U - Transformer oil taking device - Google Patents

Abstract

The utility model belongs to the technical field of power equipment gets oil appearance, specifically relate to a transformer device of getting oil, including sleeve pipe, piston and ejector pin, be provided with the screw thread on the lateral wall of sleeve pipe one end, the piston sets up at set intraduct, and the side of piston pastes with set inside of tubes wall mutually, the tip of the sleeve pipe other end is provided with the boss that is used for spacing piston, and the intercommunication has the honeycomb duct on the sheathed tube lateral wall, the ejector pin runs through the piston setting, and ejector pin and piston threaded connection, the utility model discloses the contact of reducible sampling in-process oil appearance and air carries out the relative seal sampling process, reduces the influence to experimental accuracy. Promote the piston to bushing junction get the one end department of oil valve before getting oil, get the space that forms between the two behind oil valve and the bushing junction littleer, consequently inside air content also still less, further reduces the phenomenon that the air sneaked into the oil appearance, overall structure is simple, uses convenient and more high-efficient.

Description

Transformer oil taking device

Technical Field

The utility model belongs to the technical field of power equipment oil sampling, specifically relate to a transformer oil extraction device.

Background

In order to ensure the safe and stable operation of the transformer in the hydraulic power plant, the transformer oil needs to be sampled periodically, and various chemical and physical properties in the oil are tested and analyzed by a method of gas chromatographic analysis in the oil. In order to take out an oil sample from a transformer, an oil taking valve is generally installed at an oil port of the transformer, and when oil is required to be taken, the oil sample flows out and is collected by opening the oil taking valve.

For some oil extraction valves which are transversely installed and provided and are spring valve cores, the valve cores are close to the inner positions, and the distance exists between the valve cores and the end parts of the outlet ends of the oil extraction valves. In the traditional oil taking method, a sampling person usually places a sampling bottle below one end of an outlet of an oil taking valve, then extends into the oil taking valve through tools such as a rod and the like and pushes a valve core of the oil taking valve, so that the oil taking valve is opened, and an oil sample directly flows out of the sampling bottle to be collected. In the process, the oil sample is completely exposed to the air in the process of flowing into the sampling bottle from the valve core along the outlet end of the oil taking valve, does not meet the requirements of relevant standards, and easily influences the accuracy of the test result of the oil sample.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a transformer that reduces oil appearance and air contact, improves test result accuracy gets oily device.

The utility model discloses an content includes sleeve pipe, piston and ejector pin, is provided with the screw thread on the lateral wall of sleeve pipe one end, the piston sets up at set intraduct, and the side and the intraductal wall of sleeve paste mutually, the tip of the sleeve pipe other end is provided with the boss that is used for spacing piston, and the intercommunication has the honeycomb duct on the sheathed tube lateral wall, the ejector pin runs through the piston setting, and ejector pin and piston threaded connection.

Furthermore, the end part of the other end of the sleeve is closed, the closed end of the sleeve is provided with a through hole communicated with the inside of the sleeve, the size of the through hole is smaller than the inner diameter of the sleeve, and the boss is formed between the side edge of the through hole and the inner wall of the sleeve.

Furthermore, one surface of the piston facing the through hole is provided with a guide post, and the guide post is arranged in the through hole in a penetrating mode.

Furthermore, a threaded hole is formed in the piston, the threaded hole penetrates through the piston and the guide post, and the ejector rod penetrates through the threaded hole.

Furthermore, the through hole is a polygonal hole, and the cross section shape of the guide column is matched with that of the through hole.

Furthermore, a push plate is arranged on the side surface of one end, away from the piston, of the guide post.

Furthermore, a limiting table is arranged on the side face of one end, where the ejector rod works, of the ejector rod.

Furthermore, the other end of the ejector rod is provided with a handle.

Furthermore, the device also comprises a sealing plug for sealing the flow guide pipe.

The utility model has the advantages that: (1) through sleeve pipe and get oily valve export one end inner wall connection, rethread ejector pin top moves the case, makes oil appearance flow to the intraductal sampling bottle that flows into from the honeycomb duct again of cover, can realize sealed oil appearance sampling process relatively, and the contact of oil appearance and air is few in the sampling process, reduces the influence to experimental accuracy. (2) Through setting up the piston, promote the one end department that gets the fuel tap to bushing coupling with the piston before getting oil, get the space that forms between the two behind fuel tap and the bushing still littleer, the inside air content of sleeve pipe still less, the phenomenon of reducible inside air of sleeve pipe sneak into the oil appearance, for the mode that the air content is reduced to the intraductal air of extraction sleeve through air-extracting equipment, the utility model has the advantages of simple overall structure, it is convenient and more efficient to use.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic longitudinal sectional structure of the present invention.

In the figures, 1-sleeve; 11-a through hole; 12-a boss; 2-a piston; 21-a guide post; 22-a push plate; 3-a top rod; 31-a limit station; 32-a handle; 4-a flow guide pipe.

Detailed Description

As shown in the drawing, the utility model discloses a sleeve pipe 1, piston 2 and ejector pin 3 are provided with the screw thread on the lateral wall of 1 one end of sleeve pipe, and the screw thread specifically sets up on the lateral wall of 1 this end of sleeve pipe to make 1 outer wall of sleeve pipe can with get oily valve exit end inner wall connection, piston 2 sets up inside 1 sleeve pipe, and the side and the 1 inner wall of sleeve pipe of piston 2 are pasted mutually, promote piston 2, and piston 2 can follow 1 axis direction of sleeve pipe and remove, the tip of the 1 other end of sleeve pipe is provided with boss 12 that is used for spacing piston 2, avoids piston 2 to shift out from 1 this end of sleeve pipe end, the intercommunication has honeycomb duct 4 on 1 sleeve pipe's the lateral wall, and honeycomb duct 4 is used for being connected with the sampling bottle, ejector pin 3 runs through piston 2 and sets up, ejector pin 3 and 2 threaded connection of piston, and the one end of ejector pin 3 is located sleeve 1.

The utility model is suitable for a transformer sample valve of horizontal setting, when using, close honeycomb duct 4 earlier, it flushes almost with piston 2 surfaces to rotate ejector pin 3 messenger's tip, promote piston 2 to sleeve pipe 1 and establish screwed one end, will be connected the oily valve of getting of sleeve pipe 1 with the transformer through sleeve pipe 1 lateral wall screw thread, pull back piston 2 to honeycomb duct 4 rear, honeycomb duct 4 intercommunication sleeve pipe 1's position is in between threaded area and the piston 3 on the sleeve pipe 1 this moment promptly, it removes to rotate ejector pin 3 and make it along sleeve pipe 1's axis direction, in this in-process, the inside case of valve is got in the contact of ejector pin 3 and promotes the valve core and remove, make the oil appearance flow in the sleeve pipe 1, treat that the oil appearance is full of the intraductal back of sleeve pipe 1, the part oil appearance of discharging earlier, be connected honeycomb duct 4 with the sample storage bottle, carry out the collection of oil appearance.

With the traditional direct ejecting sample valve case messenger oil appearance exhaust mode, the utility model provides a sampling device through sleeve pipe 1 with get oil valve export one end inner wall connection, 3 tops of rethread ejector pin move the case, make oil appearance flow to the sleeve pipe 1 in again from honeycomb duct 4 direct inflow sample bottle, can realize the oil appearance sampling process of relative seal, the contact of oil appearance and air is few in the sampling process, reduces the influence to experimental accuracy.

And because a certain distance is reserved between the valve core of the sampling valve and the valve port, and a threaded area connected with the oil taking valve is reserved on the sleeve 1, a certain distance is reserved between the position of the guide pipe 4 connected with the sleeve 1 and the end part of the sleeve 1. The utility model discloses a set up piston 2, can promote piston 2 to the one end that the oil valve was got in the sleeve pipe 1 connection before getting oil, make get the cavity that forms between the two after oil valve and the sleeve pipe 1 are connected littleer, connect between 1 inside and the sample valve air content also still less of back sleeve pipe, pull piston 2 to the rear of honeycomb duct 4 adapter sleeve 1 position again, rotate 3 tops of ejector pin and move the case and get oil. Based on the foregoing, piston 2's setting makes the utility model discloses the phenomenon of sneaking into oil appearance at the inside air of the reducible sleeve pipe 1 of getting oil in-process, for the mode that reduces sleeve pipe 1 air content through the air extraction equipment extraction sleeve pipe 1 in the air, the utility model has the advantages of simple overall structure, need not additionally to prepare the cooperation of air extraction equipment and bleed and use, use convenient and more high-efficient.

Wherein, boss 12 plays the limiting displacement of piston 2, specifically is, is connected the back at sleeve pipe 1 and sample valve, draws piston 2 to sleeve pipe 1 end and boss 12 butt, and when ejector pin 3 withstood the sample valve case, boss 12 also can play the effect of spacing support to piston 2, avoids leading to piston 2 roll-off sleeve pipe 1 because of the reaction force that the case produced. The boss 12 is specifically arranged in a manner that, as shown in fig. 1 and 2, the end part of the other end of the sleeve 1 is closed, the closed end of the sleeve 1 is provided with a through hole 11 communicated with the inside of the sleeve 1, and the size of the through hole 11 is smaller than the inner diameter of the sleeve 1, so that the boss 12 is formed between the side edge of the through hole 11 and the inner wall of the sleeve 1.

Wherein, piston 2 is provided with guide post 21 towards the one side of through-hole 11, guide post 21 wears to establish in through-hole 11, through setting up guide post 21, can be convenient for remove piston 2 and play the guide effect to piston 2's removal, through when rotating ejector pin 3, can hold guide post 21 after and rotate ejector pin 3 again, avoids piston 2 to follow ejector pin 3 and removes. The concrete connection mode of ejector pin 3 and piston 2 does, be provided with the screw hole on the piston 2, the screw hole runs through piston 2 and guide post 21 setting, ejector pin 3 is the threaded rod, and ejector pin 3 wears to establish in the screw hole and rather than screw-thread fit, through running through the guide post 21 setting with the screw hole, guide post 21 is when playing the effect of oneself own, multiplicable piston 2 and 3 threaded connection's of ejector pin length, improves the reliability that piston 2 and ejector pin 3 are connected.

In order to prevent the piston 2 from rotating along with the push rod 3 when the push rod 3 rotates, the through hole 11 is preferably a polygonal hole, such as a quadrilateral, the cross section of the guide post 21 is matched with that of the through hole 11, and the guide post 21 and the through hole 11 can mutually play a role in circumferential limiting.

As shown in fig. 1 and 2, the side of the end of the guide post 21 facing away from the piston 2 is provided with a push plate 22 to further facilitate pushing the piston 2 to move. As shown in fig. 2, a limiting table 31 is arranged on a side surface of one end where the ejector rod 3 works, the end where the ejector rod 3 works is the end for ejecting the valve core of the sampling valve, and the limiting table 31 is arranged on the side surface of the end, so that the size of the end of the ejector rod 3 is larger than that of the threaded hole, and the maximum rotation stroke of the ejector rod 3 is limited. As shown in fig. 1, the other end of the push rod 3, i.e., the end of the push rod 3 located outside the casing 1, is provided with a handle 32 to facilitate the rotation of the push rod 3.

The utility model discloses still including the sealing plug that is used for plugging up honeycomb duct 4, the sealing plug specifically is the rubber buffer, when need not the oil extraction, the accessible rubber buffer plugs up honeycomb duct 4 ports.

Claims (9)

1. The utility model provides a transformer gets oily device, characterized by includes sleeve pipe (1), piston (2) and ejector pin (3), is provided with the screw thread on the lateral wall of sleeve pipe (1) one end, piston (2) set up inside sleeve pipe (1), and the side of piston (2) pastes with sleeve pipe (1) inner wall mutually, the tip of sleeve pipe (1) other end is provided with boss (12) that are used for spacing piston (2), and the intercommunication has honeycomb duct (4) on the lateral wall of sleeve pipe (1), ejector pin (3) run through piston (2) and set up, and ejector pin (3) and piston (2) threaded connection.

2. The transformer oil taking device according to claim 1, wherein the end of the other end of the sleeve (1) is closed, the closed end of the sleeve (1) is provided with a through hole (11) communicated with the inside of the sleeve (1), the size of the through hole (11) is smaller than the size of the inner diameter of the sleeve (1), and the boss (12) is formed between the side edge of the through hole (11) and the inner wall of the sleeve (1).

3. The transformer oil taking device according to claim 2, wherein a guide column (21) is arranged on one surface of the piston (2) facing the through hole (11), and the guide column (21) is arranged in the through hole (11) in a penetrating manner.

4. The transformer oil extraction device according to claim 3, wherein the piston (2) is provided with a threaded hole, the threaded hole penetrates through the piston (2) and the guide post (21), and the ejector rod (3) penetrates through the threaded hole.

5. The transformer oil taking device according to claim 3 or 4, wherein the through hole (11) is a polygonal hole, and the cross section of the guide column (21) is matched with that of the through hole (11).

6. The transformer oil extraction device according to claim 3 or 4, wherein a push plate (22) is arranged on the side of one end of the guide column (21) facing away from the piston (2).

7. The transformer oil extraction device according to any one of claims 1-4, wherein a limit table (31) is arranged on the side surface of one working end of the ejector rod (3).

8. The transformer oil extracting device according to claim 7, wherein the other end of the ejector rod (3) is provided with a handle (32).

9. The transformer oil extraction device according to any one of claims 1-4, further comprising a sealing plug for sealing the flow conduit (4).

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